Hug Kristina
Department of Social Medicine, Faculty of Public Health, Kaunas University of Medicine, A. Mickeviciaus 9, 44307 Kaunas, Lithuania.
Medicina (Kaunas). 2006;42(2):107-14.
Stem cells are unspecialized cells able to divide and produce copies of themselves and having the potential to differentiate, i.e. to produce other cell types in the body. Because of the latter ability, the scientists investigate their possible use in regenerative medicine. Especially embryonic stem cells have huge therapeutic potential because they can give rise to every cell type in the body as compared to stem cells from certain adult tissues which can only differentiate into a limited range of cell types. For this reason scientists stress the importance of embryonic stem cell research. However, this research raises sensitive ethical and religious arguments, which are balanced against possible great benefit of such research for the patients suffering from so far incurable diseases. The objective of this literature review is to present the main arguments in favor and against human embryonic stem cell research. Since the sensitivity of the latter issue to a large extent stems from the position of predominant religions in a given society, the positions of the main religions regarding embryo research are also presented.
There is no consensus regarding ethical aspects of human embryonic stem cell research. The article presents both the arguments supporting human embryonic stem cell research and the arguments opposing it.
干细胞是未分化的细胞,能够分裂并自我复制,具有分化的潜力,即能够产生体内的其他细胞类型。由于干细胞的后一种能力,科学家们研究了它们在再生医学中的潜在用途。特别是胚胎干细胞具有巨大的治疗潜力,因为与某些成体组织中的干细胞相比,它们可以分化成体内的每一种细胞类型,而成体组织中的干细胞只能分化成有限范围的细胞类型。因此,科学家们强调胚胎干细胞研究的重要性。然而,这项研究引发了敏感的伦理和宗教争议,这些争议与该研究可能给患有目前无法治愈疾病的患者带来的巨大益处相互权衡。这篇文献综述的目的是呈现支持和反对人类胚胎干细胞研究的主要论据。由于后一个问题的敏感性在很大程度上源于特定社会中主要宗教的立场,因此也介绍了主要宗教对胚胎研究的立场。
关于人类胚胎干细胞研究的伦理问题没有达成共识。本文既介绍了支持人类胚胎干细胞研究的论据,也介绍了反对它的论据。